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Sequential designs for sensitivity analysis of functional inputs in computer experiments

Abstract

Computer experiments are nowadays commonly used to analyze industrial processes aiming at achieving a wanted outcome. Sensitivity analysis plays an important role in exploring the actual impact of adjustable parameters on the response variable. In this work we focus on sensitivity analysis of a scalar-valued output of a time-consuming computer code depending on scalar and functional input parameters. We investigate a sequential methodology, based on piecewise constant functions and sequential bifurcation, which is both economical and fully interpretable. The new approach is applied to a sheet metal forming problem in three sequential steps, resulting in new insights into the behavior of the forming process over time.
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Dates and versions

hal-00943509 , version 1 (18-02-2014)

Identifiers

  • HAL Id : hal-00943509 , version 1

Cite

Jana Fruth, Olivier Roustant, Sonja Kuhnt. Sequential designs for sensitivity analysis of functional inputs in computer experiments. 2014. ⟨hal-00943509⟩
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